Final answer:
RACI charts aid managers by clarifying stakeholder roles and preventing overlap in responsibilities, contributing to more effective communication and project success.
Step-by-step explanation:
RACI charts help project managers communicate effectively with stakeholders by a) Clarifying roles and responsibilities and d) Budget allocation. By clearly defining who is Responsible, Accountable, Consulted, and Informed for each task or decision in a project, RACI charts ensure that all stakeholders are aware of their specific roles, which helps to prevent confusion and overlapping duties. On the other hand, while RACI charts are valuable tools for communication and role clarification, they do not directly focus on creating project timelines or identifying project risks, which addresses other aspects of project management.